Struct ResolvedChain 

pub struct ResolvedChain {
    pub key: String,
    pub hops: Vec<PypiIndexUrl>,
    pub implicit_public_fallback: bool,
}

One fully-resolved, ready-to-register routing chain — produced by PypiIndexConfig::resolved_chains, consumed by PypiRegistry::register_chain/register_named_source.

Fields

key: String

Composite identity — becomes both the router’s alternates map key and the DependencySource::AlternateRegistry.index value for a plain (non-named-source) dependency.

For a primary/extras chain (case a/b): an opaque, single-line hashed token produced by deps_core::hash_routing_key ("pypi-chain") over the ordered hop strings plus the Self::implicit_public_fallback flag — never a newline-joined or otherwise URL-shaped value: deps-core’s AlternateRegistry.index doc describes this field as “the resolved index URL” for Cargo/npm, and a value that merely looks like a URL (but isn’t one) would violate that contract for any future reader — see plan.md’s N6 fix. An explicit chain [A, B] and an implicit chain that happens to resolve to the same hops [A, B] plus the fallback flag produce different keys (this is what closes the C2 aliasing defect: two files sharing a primary but differing extras never collide, and editing a file’s extras changes its key on the next reparse).

For a named-source chain (Poetry source =/uv index =): the source’s own literal URL, matching Cargo/npm’s convention for a single resolved index.

hops: Vec<PypiIndexUrl>

Ordered, already-validated hops. Hop 0 becomes the registered client’s own simple_base; the rest become its fallback_chain. Never empty — see PypiIndexConfig::resolved_chains’s zero-hop handling.

implicit_public_fallback: bool

true only for a case-(b) chain (spec FR-005(b)) whose final hop is the implicit public pypi.org root, appended at registration time rather than present in Self::hops — PypiRegistry::register_chain builds that hop itself.

Trait Implementations

impl Clone for ResolvedChain

fn clone(&self) -> ResolvedChain

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResolvedChain

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.